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Ethylene hydroformylation in imidazolium-based ionic liquids catalyzed by rhodium-phosphine complexes
Diao, Yanyan1; Li, Jing1; Wang, Ling1; Yang, Pu1; Yan, Ruiyi1; Jiang, Li1,2; Zhang, Heng1,3; Zhang, Suojiang1
2013-02-01
Source PublicationCATALYSIS TODAY
Volume200Issue:0Pages:54-62
AbstractIn this research, the catalytic activity of a rhodium-based (Rh) catalyst with imidazolium-based ionic liquids (IBILs) as solvents for ethylene hydroformylation was studied. The structures of IBILs had an important influence on the activity and stability of the Rh catalyst. The IBILs with longer cation side chains, which were the strong steric hindrances around the Rh catalyst, were more unfavorable for the catalytic activity. The turnover frequency (TOF) of the Rh catalyst was 10627 h(-1) when [Bmim][BF4] was used as solvent. The activity of the Rh complexes in the ionic liquid is better than they do in toluene. We used electrospray ionization mass spectrometry to characterize the catalyst after the reaction and found that [Bmim](+) acts as a ligand of the Rh catalyst to form a new active catalytic site [Rh(CO)(PPh3)(2)(Bmim)(BF4)](+) through the coordination of the Rh atom with the imidazole-2-C group of [Bmim][BF4], and it was essential for the stabilization of the Rh catalyst and prevented the formation of low-active Rh clusters. In addition, the catalyst recycling test showed that the Rh catalyst could be reused with [Bmim][BF4] as solvent without obvious loss of catalytic activity. (c) 2012 Elsevier B.V. All rights reserved.
KeywordHydroformylation Ionic Liquids Ethylene Rh Catalyst
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Indexed BySCI
Language英语
WOS KeywordBIPHASIC HYDROFORMYLATION ; SALTS ; SOLVENTS ; ALKENES ; HEXAFLUOROPHOSPHATE ; HYDROGENATION ; ISOMERIZATION ; MECHANISM ; LIGANDS ; OCTENES
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS IDWOS:000311938100010
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13641
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Qufu Normal Univ, Sch Chem & Chem Engn, Qufu 273165, Peoples R China
Recommended Citation
GB/T 7714
Diao, Yanyan,Li, Jing,Wang, Ling,et al. Ethylene hydroformylation in imidazolium-based ionic liquids catalyzed by rhodium-phosphine complexes[J]. CATALYSIS TODAY,2013,200(0):54-62.
APA Diao, Yanyan.,Li, Jing.,Wang, Ling.,Yang, Pu.,Yan, Ruiyi.,...&Zhang, Suojiang.(2013).Ethylene hydroformylation in imidazolium-based ionic liquids catalyzed by rhodium-phosphine complexes.CATALYSIS TODAY,200(0),54-62.
MLA Diao, Yanyan,et al."Ethylene hydroformylation in imidazolium-based ionic liquids catalyzed by rhodium-phosphine complexes".CATALYSIS TODAY 200.0(2013):54-62.
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